The ELM3052(TA)-V with Triac Optocouplers SOP-4_P2.54 RoHS is a device manufactured by Everlight. It is a 4-Pin SOP Optocoupler, with a 2.54mm pitch. It provides electrical isolation between the low-voltage control circuit side and the high-voltage load side of the circuit. This component is RoHS compliant and features a Triac-coupled optocoupler. The optocoupler has a zero-crossing detection, and is suitable for reliable medium and low voltage switching applications. This component is ideal for applications such as motor speed control, thermostat applications, and LED drivers.